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Finding the Fourth Proportional to 170,840.80, 256,455.60 and 100,759.60

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Solution

The fourth proportional to 170,840.80, 256,455.60 and 100,759.60 is: 151,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,840.80 : 256,455.60 = 100,759.60 : x
  2. Step 2: Convert to fraction form
    170,840.80/256,455.60 = 100,759.60/x
  3. Step 3: Cross multiply
    170,840.80x = 256,455.60 × 100,759.60
  4. Step 4: Simplify right side
    170,840.80x = 25,840,363,673.76
  5. Step 5: Solve for x
    x = 25,840,363,673.76/170,840.80
  6. Step 6: Final answer
    x = 151,254.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.